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11. if f(x) = 3x - 2, find (8) - f(-5)

Answer :

[tex]f(x)=3x-2[/tex]

we need to find f(-5) to replace on the operation

so

[tex]\begin{gathered} f(-5)=3(-5)-2 \\ f(-5)=-15-2 \\ f(-5)=-17 \end{gathered}[/tex]

now, do the finall operation

[tex]\begin{gathered} (8)-f(-5) \\ 8-(-17) \\ 8+17 \\ =25 \end{gathered}[/tex]

so, the solution is 25

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